E-commerce Web App Development in PHP

I'm seeking a skilled PHP developer to help me build a comprehensive e-commerce web application. This project involves not only the development of standard e-commerce features, but also integrating business management tools into the platform.

Key Features:

- Shopping Cart: A user-friendly, efficient shopping cart is paramount for this application.
- Payment Gateway Integration: Secure, reliable payment gateway integration is a must.
- Product Management: The application should have a robust system for easy product management.
- Business Management Tools: This is a unique aspect of the project. The developer should have experience and understanding of integrating business management features into an e-commerce platform.

Ideal Skills:
- Proficient in PHP and web application development.
- Experience in developing e-commerce platforms is crucial.
- Familiarity with business management tools integration is a plus.
- Knowledge of secure payment gateway integration.
- Capability to create an intuitive shopping cart system.

I am looking for a freelancer who can deliver a high-quality, functional e-commerce web application within the stipulated time frame.